Music leaf turner



y 1932- G. CARREIGARI 1,858,187

MUS IC LEAF TURNER Filed Sept. 18, 1929 3 Sheets-Sheet 1 y 1932- G. CARREGARI 1,858,187

MUSIC LEAF TURNER Filed Sept. 18, 1929 3 Sheets-Sheet 2 FlG.-3

May 1-0, 1932. G. CARREGARI MUSIC LEAF TURNER s Sheets-Sheet 5 Filed Sept. 18, 1929 FIGS Patented May 10, 1932 PATEN T UFF'ICE GIUSEPPE CARREGARI, OF SURESNES', FRANCE MUSIC LEAF TURNER Application filed. September 18, 1929,-Seria1 No. 393,513, and in France September 2-0, 1928.

The present invention has for its object a device destined to be adapted to any desk or stand "in order to turn the pages, one by one, of a music-book or of sheets of music, in proportion as it or as they are read by the musician, so as to render free his hands.

One executional embodiment is represented, in the Way of an example, in the drawings appended.

F ig. l is a diagrammatical elevational view showing the device mounted on a music-desk, a'part' of'its arms being placed in working position between the pages of a music-book.

Fig. 2 is a plan view, the cover and the movable arms being represented in their armed position.

' Fig. '3 is a front elevation ofthe device such as represented in Fig. 2 and looked at in the direction of the arrow 7".

'Fig. 4 is a lateral elevation of the device shown in Fig. 3, the cover being always supposed taken away.

Fig. 5 is a section efiected according to lines a?; of Fig. 2, drawn in a larger scale and showing the mechanism disengaging and controlling the movable arms.

Fig. 6 is a partial plan view seen from above the disengaging mechanism, the arms being supposed in an inactive position and the cover being removed.

The apparatus consists essentially of a case, preferably of metal and of varying shape and dimensions and provided with appropriate means for its solid fixation to any desk or. the like.

6 indicates the bottom of this case, 1 its rear wall, 29 its front wall and 31 its upper part or cover.

The latter is removably attaohed and forms with its front wall 29 a "longitudinal slit 8O horizontal up to the point 30 then starting from this point inclined up to 30 (Fig. 4) and finally bent and slightly oblique in the upward direction, at 30 up to its encountering the rear wall 1.

To the said rear wall are attached, at 2, Fig. 3) a certain number of spiral-springs 3, the free extremity of each of which is connected to a movable piece 4. These movable pieces 4 are pivoted freely around an axle 5 fixed to the bottom 6 of the casing. To each piece 4 is pivotally connected the inner end ofa: leaf turning arm T which has a vertical extension 8 at its outer end, the pivoted connection at the inner end of the arm enabling the arm to turn in a vertical plane.

Normally the arms 7 are placed against each other'in the portion 80 of the slit 30 and are kept there by the tension of the springs 3. By pivoting them on the axle 5 the arms are moved successively, one by one, to the right of the slit 30, whereby the springs are tensioned. The arms are kept in this position by a disengaging and controlling device constituting an essential feature of the invention and devised in the following manner:

To the bottom of the casing is fixed at 9 a standard forming two vertical uprights 9 and 15. On the upright 9 is arrangeda vertically movable slide 10 which has a stop fin ger 11 at its upper end shown clearly in Fig. and i'urthern'lore"with a heel 12; against the latter abuts a spring13 maintained at 1st by an abutment provided on the upright 9. The purpose of this spring is to maintain normally the slide 10 in its loweredposition (Fig.

Parallel to the said slide 10 and back to back lithe same is arranged another slide 16 sliding on the upright '15 and carrying an appendix I'Zsnpporting an oscillating beak 18 snbn'iitted to the action of a counterweight 19 maintaining the beak in its raised position. The slide 16 is also provided-with a. heel 26 engaging freely a part 21 fitted at the extremity of a lever 22 pivoting around an aide 22"; the other extremity of this lever 22 is placed below the heel 12 of the slide 10. The lever 22 is, besides, provided with a finger 23 and below the latter is placed a suitably shaped extremity of a lever 24 pivoting around an axle 25 supported by a lug 26 fixed to the bottom 6 of the casing.

The lever 24 is connected to a cross-bar 27, to whose other extremity is attached another lever 2i pivoting around an axle 28' journalled in a support 26 fixed to the bottom 6. The levers and 2st traverse the front plate theopening provided for this purpose being'sufficient to permit their free'di splacement; the piece 27 is situated outside of this plate 29 (Figs. 2, 4, 5 and 6).

It is easily to be understood that when applying force upon the bar 27' in the direction of the arrow 7, the slide 10 is raised and the slide 16 is lowered, through the medium of the lever 22. On stopping pressing of the bar 27 the spring 13 lowers the slide 10 and through the lever 22 raises the slide 16 and in this way an alternating movement of these slides 10 and 16 is produced. It follows from what has been stated, that the arms 7 displaced to the right of the slit 30 are maintained by the beak 18 (Fig. 5). The arms are therefore in their restrained position since the springs 8 are tensioned and by pressing down the bar 27 the beak 18 is lowered whereby the first of the arms 7 is freed. At the same time the finger 11 is raised so that the next arms are arrested. As soon as the pressing of the bar 27 ceases, the finger 18 ascends and the beak 11 is raised and the beak 18 remains in its lowered position. The same movement is produced by pressing anew the bar 27. 7

Consequently, if the arms 7 are placed between the leaves of a music-book or of musicsheets, for example, each time that a disen gagement of the mechanism is produced, the arm freed at this moment is moved, by traction of its spring 3, along the slit 30, 50 into the portion 30 and takes along the leaf applied against it. Consequently the leaf will be turned and the musician will be able to read the next one.

It is of course obvious that the releasing of the mechanism may be obtained also by means differing from those described. It is, for example, possible to utilize an angular lever 32 pivoting around an axle 33 and applying with its one extremity upon the bar 27 Whereas the other extremity is attached to a traction element of any kind to be acted upon by feet; for example, or otherwise.

Though in the above description the device is applied to a music-book, it goes without saying that the apparatus is utilizable in all cases requiring an automatic turning of the pages or leaves.

It must be understood that the special embodiment as described, does in no way limit the invention since the same may undergo numerous modifications.

Vhat I claim, is:

1. In a music leaf turner, an arm mounted for swinging movement in a horizontal plane and also for angular movement in a vertical plane, a spring active to swing the arm .and thereby cause it to turn a leaf, a stop to hold the arm in initial position against the tension of the spring, means to release the stop from the arm and a casing having a cam slot through which the arm extends, said cam slot serving to lower the arm as the latter nears the end of the swinging movement and thereby disengage the outer end of the arm from the leaf.

2. A music leaf turner comprising a plu-l rality of leaf turning arms each pivotally;

mounted for swinging movement in a honzontal plane and also for vertical angular movement and having an upstanding leaf engaging outer end, springs to impart swinging movement to said arms, a movable member having a stop finger to engage between the outermost arm and the next, a second movable element having a pivotally mounted stop to engage the outer side of the outermost arm, connecting elements between the said movable elements to simultaneously reversely actuate the same, prime moving means to operate said connecting elements, and a casing having a cam slot in which the arms are arranged to swing, said cam slot being so formed as to move the outer end of each arm downwardly as the latter nears the end of its swinging movement and thereby cause the upstanding end thereof to be disengaged from the leaf turned thereby.

3. Music leaf turner as claimed in claim 2, in which the said movable elements are Vertically movable slides and in which the connecting elements constitute a double armed lever and connections between the ends thereof and the respective slides and in which the prime moving means is a manually operable lever arranged to actuate the said double armed lever.

In witness whereof I affix my signature.

GIUSEPPE CARREGARI. 

